What feature do you want to see added?

IP addresses are neither immutable nor unique, it's actually insane to use them to identify players.
As of writing this, the default value is 1.

Examples of situations where many players can share the same IP:

• people living in the same household, or connecting to a public network (everybody has exactly the same public IP)
• people using the same ISP (multiple unrelated customers can appear under the same public IP, sometimes even at the same time because of CGNAT)
• tunneling software (in such case players don't connect to the server directly, but via proxy, every single player gets the same IP)

Are there any alternatives?

Everybody can configure it to their own need, but I still don't think 1 is a good default

Anything else?

No response